Patent US3294391A successfully refreshed from Google Patents.
US3294391A
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Shock absorber construction
Assignee: Tenneco Automotive Inc
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Filing: 1964-12-07
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Granted: 1966-12-27
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Charles J Smith
- 👤 William W Higginbotham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:38
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/003; F16F9/10; F16F9/14; F16F9/16; F16F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A SHOCK ABSORBER, A PRESSURE CYLINDER, A PISTON WITHIN THE PRESSURE CYLINDER, A PISTON ROD ON THE PISTON, VALVES ON THE PISTON FOR CONTROLLING THE FLOW OF FLUID THROUGH THE PISTON FROM ONE OF THE OTHER SIDE THEREOF, A RESERVOIR ADJACENT TO SAID PRESSURE CYLINDER, A VALVE BETWEEN SAID PRESSURE CYLINDER AND RESERVOIR FOR CONTROLLING THE FLOW OF FLUID TO AND FROM THE CYLINDER AND RESERVOIR AND A TUBE OF ELASTOMERIC MATERIAL SUBSTANTIALLY THE LENGTH
Claim 2
Dependent Claim
76 words
IN A SHOCK ABSORBER, A PRESSURE CYLINDER, A PISTON WITHIN THE PRESSURE CYLINDER, A PISTON ROD ON THE PISTON, VALVES ON THE PISTON FOR CONTROLLING THE FLOW OF FLUID THROUGH THE PISTON FROM ONE OF THE OTHER SIDE THEREOF, A RESERVOIR ADJACENT TO SAID PRESSURE CYLINDER, A VALVE BETWEEN SAID PRESSURE CYLINDER AND RESERVOIR FOR CONTROLLING THE FLOW OF FLUID TO AND FROM THE CYLINDER AND RESERVOIR AND A TUBE OF ELASTOMERIC MATERIAL SUBSTANTIALLY THE LENGTH
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |